Detail of "529-53-3"

Reference

Pulsed polarographic determination of flavone glycosides and aglycones in Huanggin

Pulsed polarographic determination of flavone glycosides and aglycones in Huanggin. Zhang, Xiuqin; Xu, Lixin (Inst. Mater. Med., Chin. Acad. Med. Sci., Beijing, Peop. Rep. China). Zhongcaoyao, 16(5), 216-17 (Chinese) 1985. CODEN: CTYAD8. ISSN: 0253-2670. DOCUMENT TYPE: Journal CA Section: 64 (Pharmaceutical Analysis) Flavone glycosides and aglycons of Huanggin prepns. were extd. with solvents, [Et2O-EtOAc (5:1) for aglycon followed by MeOH-H2O-dioxane (4:3:3)], sepd. by TLC, and detd. by pulsed polarog. using BuOH-H2O-AcOH (2:1:0.5) as developing agent and comparing with the std. curve of baicalin [21967-41-9] and scutellarein [529-53-3], resp. 529-53-3 and 21967-41-9 are just another two chemicals used in this study.; the recovery was >94.1%. .

The application of solid-phase extraction and reversed phase high-performance liquid chromatography for simultaneous isolation and determination of plant flavonoids and phenolic acids

The application of solid-phase extraction and reversed phase high-performance liquid chromatography for simultaneous isolation and determination of plant flavonoids and phenolic acids. Zgorka, G.; Hajnos, A. (Dep. of Pharmacognosy, Medical Univ., Lublin 20-007, Pol.). Chromatographia, 57(Suppl.), S/77-S/80 (English) 2003 Friedrich Vieweg & Sohn Verlagsgesellschaft mbH. CODEN: CHRGB7. ISSN: 0009-5893. DOCUMENT TYPE: Journal CA Section: 9 (Biochemical Methods) Section cross-reference(s): 6, 11 A new method combining solid-phase extn. and reversed phase high-performance liq. chromatog. was developed for simultaneous isolation and detn. of flavones (baicalin, baicalein, chrysin, scutellarein) and some phenolic acids in aerial and underground parts of a medicinal plant - Scutellaria baicalensis Georgi. The application of optimized enrichment conditions, elaborated on octadecyl and quaternary amine BakerBond microcolumns have led to the extn. of both groups of analytes with recoveries >95% and variation coeffs. 529-53-3 and 99-96-7 are just another two chemicals used in this study. <5%. .